Starbucks just launched a new Frappuccino — and you'll only find it at Target

The Dark Mocha Frappuccino is starting to appear at Target locations.Delish/Starbucks

The INSIDER Summary:

Starbucks added a Dark Mocha Frappuccino to the menu of their Target cafes.

All stores technically have the ingredients to make one, but it's only officially on the menu at Target locations.

The drink is only available while supplies last.

If all of your money already goes to impulse buys at Target, add one more to the list: A Frappuccino you won't find on the menu anywhere else. The big box store partnered with Starbucks to give shoppers a first taste of its newest drink, the Dark Mocha Frappuccino.

Ice, espresso, milk, and extra-dark chocolate are blended together to make this decadent-but-not-cloyingly-sweet Frapp, and the whole thing's topped with whipped cream. It quietly popped up on the menu at Starbucks cafes inside Targets nationwide on Aug. 21, but they're only available while supplies last, according to an announcement from the bullseye brand.

However, just because it's not on the menu at regular Starbucks stores doesn't mean it's off-limits. All stores carry the necessary ingredients to make one, a representative for the coffee chain confirmed, so you can simply ask your barista for a Frappuccino made with dark mocha sauce — the very same found in the Midnight Mint Mocha.

"I liked this drink but one thing to mention is that it does taste like dark chocolate," wrote blogger Melody Overton of StarbucksMelody.com, in a review of the drink. Just as if you bite into dark chocolate, you'll taste a tiny bit of the bitterness of the dark chocolate. Here you'll get that flavor in the Frappuccino too."

She recommends trying it with a mocha drizzle or sprinkle of cocoa powder on top of the whipped cream.